<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>CSS Test: z-index</title>
    <link rel="author" title="Robert O'Callahan" href="mailto:robert@ocallahan.org" />
    <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact"/>
    <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" />
    <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#z-index" />
    <link rel="match" href="z-index-020-ref.xht"/>
    <link rel="match" href="z-index-020-ref2.xht"/>
<style type="text/css">
.container {
  z-index:0;
  position: relative;
  height: 200px;
  width: 200px;
  font-size: 0;
  line-height: 0;
  background: silver;
  border: solid white;
}
.container div {
  height: 80px;
  width: 80px;
  padding: 10px;
}
.test div {
  margin-bottom:-75px;
}
.negative {
  margin-left: 100px;
  background-color:navy;
  position:relative;
  z-index:-1;
}
.block {
  margin-left: 100px
  background-color:fuchsia;
}
.float {
  margin-left: 75px;
  margin-top: 0;
  float:left;
  background-color:blue;
}
.inline {
  margin-left: 50px;
  margin-top: 0;
  display: inline-block;
  vertical-align: bottom;
  background-color: aqua;
}
.positioned {
  margin-left: 25px;
  background: lime;
  position:relative;
  margin-bottom: -80px !important; # 75 + 5
}
.positive {
  background-color: teal;
  position:relative;
  z-index:1;
}

.test .outline {
  outline: solid fuchsia 5px;
  margin: 0 20px -80px;
  padding: 0;
  width: 110px;
  height: 85px ;
}

.control .outline {
  border: solid fuchsia 5px;
  width: 110px;
  height: 85px;
  padding: 0;
}

.outline.c1 {
  margin: 30px 5px 100px;
}
.outline.c2 {
  padding: 0;
  margin: -20px -45px;
}
.outline.c2 > div {
  margin: -20px 5px 0;
}

.control div {
  margin-left: -35px;
  margin-top: -35px;
}
.control > div {
  margin-left: auto;
  margin-top: 100px;
}
</style>
</head>
<body>
<div class="test container">
  <div class="positive"></div>
  <div class="positioned"></div>
  <div class="outline"></div>
  <div class="inline"></div>
  <div class="float"></div>
  <div class="block"></div>
  <div class="negative"></div>
</div>

<p>The pattern above must match one of the two patterns below.</p>

<div class="control container">
  <div style="background: navy">
    <div style="background: blue">
       <div style="background: aqua">
         <div style="background: lime">
           <div style="background: teal">
             <div class="outline c1">
             </div>
           </div>
         </div>
      </div>
    </div>
  </div>
</div>

<div class="control container">
  <div style="background: navy">
    <div style="background: blue">
       <div style="background: aqua">
         <div class="outline c2">
           <div style="background: lime">
             <div style="background: teal">
             </div>
           </div>
         </div>
      </div>
    </div>
  </div>
</div>

</body></html>
